In RSTP, Which Statements About the Alternate Port and Backup

In RSTP, which statements about the alternate port and backup port are true? (Choose two.)

A) The alternate port is a backup of the root port.
B) The backup port is a backup of the designated port.
C) The switch that the backup port belongs to is not the designated switch on the network segment connected to the interface.
D) The switch that the alternate port belongs to is the designated switch on the network segment connected to the interface.